SUN HYDRAULICS
DRBNOBN
$131.40 USD
Tags:
- SUN HYDRAULICS
- Material:DRBNOBN
- Model:DRBN-OBN
- Summary:Cartridge
Quantity in stock: 0
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics DRBNOBN (Material Number: DRBNOBN) is a normally closed, direct-acting, 2-way directional cartridge valve designed for use in moderate flow circuits. These versatile switching devices can be utilized independently or to actuate larger pilot-operated directional or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 4 surpasses the predefined setting. It features a bidirectional flow path between port 2 and port 3, with port 3 also available as a work port. Thanks to its direct-acting design, the DRBNOBN offers low internal leakage and minimal pilot flow consumption. This model is interchangeable with other direct-acting and pilot-operated versions, fitting the same cavities and maintaining consistent flow paths. The pressure at port 4 directly adds to the valve's setting, while maximum pressure at port 3 should not exceed 3000 psi (210 bar) due to fatigue strength limits. The valve incorporates Sun's floating style construction to reduce potential internal part binding caused by excessive installation torque or cavity-cartridge machining variations. The DRBNOBN fits into a T21A cavity and belongs to Series 1 with a capacity of up to 7 gpm (28 L/min). Factory pressure settings are established at a flow rate of 4 gpm (15 L/min), with a maximum operating pressure of 5000 psi (350 bar). It allows for an adjustment range of up to 5.5 clockwise turns to increase the setting. Additional specifications include a valve hex size of .78 inches (22.2 mm), installation torque between 30 - 35 lbf\u00b7ft (41 - 47 Nm), an adjustment screw internal hex size of .532 inches (4 mm), and locknut torque rated at 80 - 90 lbf\u00b7in (9 -10 Nm). The model weighs approximately .55 lb (.25 kg) and uses Viton seal kits under part number: 990021006.
The Sun Hydraulics DRBNOBN (Material Number: DRBNOBN) is a normally closed, direct-acting, 2-way directional cartridge valve designed for use in moderate flow circuits. These versatile switching devices can be utilized independently or to actuate larger pilot-operated directional or logic cartridges. The valve operates by shifting when the pressure differential between port 1 and port 4 surpasses the predefined setting. It features a bidirectional flow path between port 2 and port 3, with port 3 also available as a work port. Thanks to its direct-acting design, the DRBNOBN offers low internal leakage and minimal pilot flow consumption. This model is interchangeable with other direct-acting and pilot-operated versions, fitting the same cavities and maintaining consistent flow paths. The pressure at port 4 directly adds to the valve's setting, while maximum pressure at port 3 should not exceed 3000 psi (210 bar) due to fatigue strength limits. The valve incorporates Sun's floating style construction to reduce potential internal part binding caused by excessive installation torque or cavity-cartridge machining variations. The DRBNOBN fits into a T21A cavity and belongs to Series 1 with a capacity of up to 7 gpm (28 L/min). Factory pressure settings are established at a flow rate of 4 gpm (15 L/min), with a maximum operating pressure of 5000 psi (350 bar). It allows for an adjustment range of up to 5.5 clockwise turns to increase the setting. Additional specifications include a valve hex size of .78 inches (22.2 mm), installation torque between 30 - 35 lbf\u00b7ft (41 - 47 Nm), an adjustment screw internal hex size of .532 inches (4 mm), and locknut torque rated at 80 - 90 lbf\u00b7in (9 -10 Nm). The model weighs approximately .55 lb (.25 kg) and uses Viton seal kits under part number: 990021006.
Normally closed, direct-acting, 2-way directional cartridges are switching devices typically used in moderate flow circuits. They can be used by themselves or to actuate larger pilot-operated directional cartridges or logic cartridges. The valve shifts when the pressure differential between port 1 and port 4 exceeds the setting.
- Port 3 can be used as a work port.
- The flow path between port 2 and port 3 is bidirectional.
- Because of their direct-acting design, these cartridges feature low internal leakage and low pilot flow consumption.
- Direct-acting and pilot-operated versions of these valves are interchangeable. They fit the same cavities and have the same flow paths.
- Pressure at port 4 is directly additive to the setting of the valve.
- This valve is not bistable; it is capable of modulating between the two positions shown.
- Maximum pressure at port 3 should be limited to 3000 psi (210 bar). This is due to fatigue strength limits not hydraulic operating limits.
- Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.
| Cavity | T-21A |
| Series | 1 |
| Capacity | 7 gpm28 L/min. |
| Factory Pressure Settings Established at | 4 gpm15 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 2 in³/min.30 cc/min. |
| Adjustment - Number of Clockwise Turns to Increase Setting | 55 |
| Valve Hex Size | 7/8 in.22,2 mm |
| Valve Installation Torque | 30 - 35 lbf ft41 - 47 Nm |
| Adjustment Screw Internal Hex Size | 5/32 in.4 mm |
| Locknut Hex Size | 9/16 in.15 mm |
| Locknut Torque | 80 - 90 lbf in.9 - 10 Nm |
| Model Weight | .55 lb0,25 kg |
| Seal kit - Cartridge | Viton: 990-021-006 |
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